Official NHA Assessment

Race 5: TABGOLD SOCCER 13 MR 83 HANDICAP (Open)

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Line Horse
Bristol Hercules
Reference for assessment
Exact Matches
2 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
7 / 11
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Imposing             2    56.0    1    0.00     0.0   78    76           78    +0
2    Bristol Hercules     2    56.5    2    0.60     0.0   82    82           82    +0
3    Wiccan Warrior       2    62.5    3    0.70     0.0   88    94           94    +6
4    Release Me           3    56.0    4    1.10     2.5   75    75           75    +0
5    Trusova              2    55.5    5    1.70     0.0   80    78           78    -2
6    Kimball O'Hara       2    53.0    6    2.60     0.0   69    72           72    +3
7    Parmenion            5    59.0    7    2.90     0.0   81    84           84    +3
8    Cupid's Song         4    58.5    8    3.60     1.5   80    79           79    -1
9    Sweeper Keeper       4    56.0    9    4.30     1.5   81    73           73    -8
10   Spring Palace        2    55.0    10   18.20    0.0   79    74           74    -5
99   Master Josh          2    60.5    99   0.00     0.0   -     85           85    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Imposing 78 107 78 +29 0.0 -
2 Bristol Hercules Line 82 87 82 +5 0.0
3 Wiccan Warrior 88 80 94 -14 0.0 -
4 Release Me 75 74 75 -1 2.5 -
5 Trusova 80 78 78 ✓ Match 0.0 -
6 Kimball O'Hara 69 61 72 -11 0.0 -
7 Parmenion 81 78 84 -6 0.0 -
8 Cupid's Song 80 79 79 ✓ Match 1.5 -
9 Sweeper Keeper 81 67 73 -6 1.5 -
10 Spring Palace 79 58 74 -16 0.0 -
99 Master Josh - 97 85 +12 0.0 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. Apply special rules (maiden caps, layoff allowance)
Key Formulas:
  • Drag Effect: Varies by distance (see Benchmarks page)
  • 1 length ≈ 1kg at 1 mile (1600m)
  • WFA Scale: Based on Admiral Rous's 1855 table
  • Rating Points: 1kg = 2 rating points